The crash, which took place during Tuesday morning's rush hour, injured three people. The driver has since been arrested for attempted terrorism and attempted murder.

In response to the attack, Canada has increased it's advisory this morning to warn Canadians to exercise a high degree of caution, which is only one level below avoiding travel on the travel advisory scale.

According to the advisory, that level means that "there are identifiable safety and security concerns or the safety and security situation could change with little notice. You should exercise a high degree of caution at all times, monitor local media and follow the instructions of local authorities."

The warning goes on to say that there have already been six attacks in the UK in the past year and further attacks in European countries are likely. The government specifically warns Canadians to be extra vigilant around sporting events, on religious holidays, or in big crowds.

On top of the updated terrorism information, the travel advisory for the UK also warns Canadians about crime such as assaults in unlicensed taxis, fraud at bank machines, and spiked food and beverages.